Interproximal caries of anterior teeth is best detected by.. Periapical X-ray film

Interproximal caries of anterior teeth is best detected by:

OR

The x-ray of choice to detect the proximal caries of the anterior teeth is:

1- Periapical X-ray film *** (specially on palatal surface)

2- Bitewing X-ray film 

3- Occlusal X-ray film

4- None of the above

If anterior (periapical x-ray) if posterior (bitewing)

Bitewing for posterior teeth and distal surface of canine